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Leases - Commitments and Contingencies (Details 5) $ in Millions	Mar. 31, 2018 USD ($)
Operating Lease Commitments [Abstract]
Remaining 2018	$ 12.3
2019	11.4
2020	6.9
2021	3.9
2022	2.2
Thereafter	3.5
Operating Leases, Future Minimum Payments Due	40.2
Finance Lease Commitments [Abstract]
Remaining 2018	0.3
2019	0.3
2020	0.2
2021	0.0
2022	0.0
Thereafter	0.0
Total	0.8
Total Lease Commitments [Abstract]
Remaining 2018	12.6
2019	11.7
2020	7.1
2021	3.9
2022	2.2
Thereafter	3.5
Total	$ 41.0

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